1580440852 has 6 divisors (see below), whose sum is σ = 2765771498. Its totient is φ = 790220424.

The previous prime is 1580440793. The next prime is 1580440871. The reversal of 1580440852 is 2580440851.

It can be written as a sum of positive squares in only one way, i.e., 1122652036 + 457788816 = 33506^2 + 21396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197555103 + ... + 197555110.

Almost surely, 2^1580440852 is an apocalyptic number.

It is an amenable number.

1580440852 is a deficient number, since it is larger than the sum of its proper divisors (1185330646).

1580440852 is a wasteful number, since it uses less digits than its factorization.

1580440852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395110217 (or 395110215 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 1580440852 is about 39754.7588597894. The cubic root of 1580440852 is about 1164.8216006368.

Subtracting 1580440852 from its reverse (2580440851), we obtain a palindrome (999999999).

The spelling of 1580440852 in words is "one billion, five hundred eighty million, four hundred forty thousand, eight hundred fifty-two".